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Dispersal governs the reorganization of ecological networks under environmental change [Nature Ecology & Evolution]

Keywords : biodiversity, ecological modelling, ecological networks, food webs, theoretical ecology

par Frédéric Magné - publié le

Ecological networks, such as food webs, mutualist webs and host–parasite webs, are reorganizing as species abundances and spatial distributions shift in response to environmental change. Current theoretical expectations for how this reorganization will occur are available for competition or for parts of interaction networks, but these may not extend to more complex networks. Here we use metacommunity theory to develop new expectations for how complex networks will reorganize under environmental change, and show that dispersal is crucial for determining the degree to which networks will retain their composition and structure.(...)

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